Gravity automatic metering mixer

Abstract

The invention discloses a gravity type autoweighting mixer, which comprises at least two feed hoppers. The lower part of each feed hopper is connected with the feed inlet of a corresponding weighting conveyer device; the discharge outlet of each weighting conveyer device is connected to a mixing feed hopper; the lower side of each mixing feed hopper is provided with a mixing box body communicating with the mixing feed hopper; all the weighting conveyer devices are obliquely arranged; the feed inlet of each weighting conveyer device is lower than the discharge outlet thereof; an upper funnel, a conic cap and a lower funnel are arranged inside the mixing box body from the top to the bottom; clearances are reserved among the upper funnel, the conic cap and the lower funnel; the upper edges of both the upper funnel and the lower funnel are attached to the inner wall of the mixing box body; the top part of the conic cap is arranged under the discharge outlet of the upper funnel; and the clearance between the lower edge of the conic cap and the inner wall of the mixing box body forms a material flow passage. The gravity type autoweighting mixer of the invention is suitable for quantificationally mixing and coloring plastic granules.

Description

technical field [0001] The invention relates to the technical field of quantitative mixing and coloring of plastic particles, in particular to a gravity-type automatic metering mixer capable of quantitatively mixing and coloring plastic particles. Background technique [0002] The automatic metering mixers produced on the market today for quantitatively coloring and mixing plastic particles are mostly of agitation type. The agitation type automatic metering mixer adopts a horizontal metering and conveying device. , a feeding screw is installed inside the barrel, one end of the barrel is provided with a reducer that drives the screw, the other end of the barrel is a discharge port, and a feeding port is provided above the barrel. It is connected to the feeding hopper. When the metering and conveying device stops conveying after the measurement, because the metering and conveying device is horizontal, the plastic particles located at the discharge port of the metering and conv...

AI Technical Summary

Problems solved by technology

[0002] Most of the automatic metering mixers used for quantitative coloring and mixing of plastic particles produced on the market today are of the agitation type, and the agitation type automatic metering mixers use a horizontal metering and conveying device, and the metering and conveying device includes a cylinder , the inside of the cylinder is equipped with a feeding screw, one end of the cylinder is provided with a reducer for driving the screw, the other end of the cylinder is a discharge port, and the top of the cylinder is provided with a feed port, the feed port It is connected with the feed hopper. When the metering and conveying device finishes measuring and stops conveying, since the metering and conveying device is horizontal, the plastic particles at the outlet of the metering and conveying device are prone to slipping, resulting in inaccurate metering. The measurement accuracy of the automatic metering mixer produced is generally ±1%, which can only be used in places where the mixing accuracy is relatively low; the mixing and coloring part of the stirring automatic metering mixer uses a stirring shaft. When the stirring shaft is stirring, the plastic The heavy particles sink and the light ones float, which is prone to unevenness, resulting in chromatic aberration

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